by Angela Halderson
As the days grow shorter and colder, our bodies naturally face more immune challenges. By incorporating a few new daily habits, you can fortify your defenses and head into winter feeling resilient.
Here are the first five habits in your 10-part winter wellness checklist:
1. Get Serious About Vitamin D (with K2 for Balance)
One of the most overlooked aspects of winter immunity is maintaining healthy vitamin D levels. Known as the “sunshine vitamin,” vitamin D is crucial for immune cell function, inflammation regulation, and even mood balance. In northern climates, it’s impossible to make enough from sunlight during the winter months. Reach an optimal Vitamin D level (about 80ng/mL) by taking 5000 IU daily with vitamin K. Vitamin K aids in vitamin D and calcium absorption.
2. Lean on Immune-Supportive Herbs
Herbal allies have been used for centuries to help people stay strong during the colder months. A few worth mentioning are:
- Echinacea: Best known for its ability to activate white blood cells and shorten the duration of colds. Take it at the very first sign of a scratchy throat or fatigue for maximum benefit.
- Lemon Balm: A gentle antiviral herb that also soothes stress and improves sleep quality.
- Elderberry: Rich in flavonoids and anthocyanins, elderberry has been shown to reduce the severity and duration of flu symptoms when taken consistently.
Use these as a tea, tincture, or in capsules throughout the colder seasons to help your body combat seasonal viruses.
3. Keep Your Gut Happy
Seventy percent of your immune system lives in your gut. A healthy microbiome is your first line of defense against pathogens. Simple habits make a big difference:
- Eat fermented foods daily, such as sauerkraut, yogurt, kimchi, and kefir.
- Add prebiotic fiber from onions, garlic, leeks, and asparagus.
Check out Strong Meridian’s blog for other easy-to-use prebiotics that help build a healthy biome.
4. Prioritize Sleep Like It’s Medicine
Sleep isn’t just rest—it’s when your immune system resets and repairs. Aim for 7 to 9 hours nightly with a consistent bedtime routine to increase your body’s natural killer cells.
Tips to make sleep more immune-nourishing:
- Power down blue screens an hour before bed. (TV, computers, cell phones, etc.)
- Keep your bedroom cool and dark.
- Try calming teas such as kava kava, lemon balm, chamomile, or passionflower.
5. Move Your Body (But Don’t Overdo It)
Movement is non-negotiable for circulation, lymphatic flow, and stress reduction. But winter is a season to balance intensity. Too much strenuous exercise without recovery can actually suppress immune defenses, while gentle, consistent movement enhances them.
Aim for at least 30 minutes of activity most days, mixing moderate cardio with stretching and weight-bearing exercises. Outdoor activity is a bonus since it boosts mood and, on sunny days, gives you a small dose of natural vitamin D.
Come back next month for more ways to winter-proof your health!
This article was originally published in the November 2025 issue of Appleton Monthly Magazine.
